X0508 4 2023-12-15 0001121788 GARMIN LTD GRMN 0001801889 Munn Matthew 28125 CABOT DRIVE SUITE 120 NOVI MI 48377 1 VP, Man. Director - Auto OEM 0 Registered Shares 2023-12-15 4 F 0 709 126.13 D 8314 D Registered Shares 2023-12-15 4 A 0 3315 0 A 11629 D On December 15, 2023, 2,473 shares that were acquired pursuant to previously granted restricted stock unit awards vested and were released to the reporting person. Of those 2,473 shares, 709 shares were withheld to pay the resulting tax liability. Includes 4,360 unvested shares acquired pursuant to previously granted restricted stock unit awards. On December 15, 2023 the reporting person received a grant of 3,315 restricted stock units, which vest in three equal annual installments, beginning on December 15, 2024. Includes 7,675 unvested shares acquired pursuant to the December 15, 2023 restricted stock unit award and previously granted restricted stock unit awards. /s/ Paul E. Cassat, Attorney-in-Fact 2023-12-19